Vanadium oxide, as catalyst

Vanadium oxide as catalyst, 174 Vinyl chloride, manufacture of, using catalysts, 238... 

More recently the conversion of benzene into maleic add in the presence of vanadium oxides as catalysts has been studied with a view to throwing light on the mechanism of such oxidations. The data obtained seem to show that the action depends on an osdllation between the two oxides V205 and V204, the dissodation of the former supplying activated oxygen for the reaction but it is also shown that the nature of the products of the oxidation is a function of some other property of the catalyst not yet clearly understood.3... 

In SOs-sulfation, the gas may be delivered by an outside manufacturer in tank cars, is produced in-house by stripping from oleum, or is generated close to the sulfation unit by burning sulfur and oxidizing of the SO2 to SO3 by air with vanadium oxide as catalyst. The latter is the preferred method in modem plants. The SO3 is diluted with dry air to reduce reactivity. Falling film and cascade reactors are used to carry out s. Temperature control and adequate feed transport that respect the changes in viscosity during the process are the key criteria for these processes and for product quality (color). 

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